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Hot dipped GI sheet electric-arc welding technology

May 31, 2017No CommentsCAMELSTEEL

The galvanized layer of hot dipped GI sheet features both psychical shielding effect and electrochemical protection effect on steel substrate. Relying on good anti-corrosion, hot dipped GI sheet is widely applied in many fields. Here CAMELSTEEL will introduce the electric-arc welding technology of hot dipped GI sheet.

While adopting electric-arc welding to weld galvanized steel sheet, due to low boiling point, zinc will quickly gasifies when the electric-arc touches galvanized layer. The zinc steam generated sprays outside, easily causing welding defects such as slag particle, pore, splashing, incomplete fusion and crack, etc during welding. The stability of electric-arc is impacted and welding quality decreases. Also, a lot of smoke and dust can generate during welding process.

Besides, electric-arc sees large weld width and large heat input. Large amount of gasification of galvanized layer lowers the anti-corrosion performance of welded seam of galvanized steel sheet.

Hot dipped GI sheet surface treatments can provide enhanced resistance to staining, improved formability, and/or improved paintability. Galvanized sheet can be used bare, pre painted or post painted.

CAMELSTEEL Main product:

A prepainted galvanized steel coil (PPGI)
B prepainted gavalume steel coil (PPGL)
C galvanized and galvalume/aluzinc steel coil (GI & GL)
D prepainted galvanized steel plate and roofing tiles

 

CAMELSTEEL consistently carry out the policy of “Customer first, employees of the second, third shareholders” and the tenet of “Treat people with sincerity, start business with trustiness”. We insist brand building of main line, market demand oriented, not afraid to innovate, keep providing the first-class service and quality products for customers indeed.

Previous post Hot Dipped Galvanized Plate Working Principle Next post Factors influencing the service time of zinc galvanized steel

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